Jagwire LEX Shift Housing

Yes, the 4mm Jagwire LEX housing is the industry standard for derailleur systems and is fully compatible with both road and mountain bike shift setups.

Yes, it features a factory-installed Slick-Lube liner that runs the full length of the housing, which helps reduce friction and keeps shifting smooth over time.

No, this is specifically designed for shift systems. Brake housing is constructed differently to handle higher compression forces, so you should use dedicated brake housing for your braking system.

While it is marketed as a shop roll for professional environments, it is a great investment for home mechanics who maintain a fleet of bikes or frequently perform cable replacements, as it allows you to cut custom lengths and eliminate waste.

You will need a high-quality cable cutter designed for bicycle housing to ensure a clean, square cut. Using standard wire cutters will likely crush the housing and deform the internal liner, which can cause shifting issues.